I have my VPI Nomad for over two years already, and got the Ortofon 2M Blue today. I installed the new stylus and used a force scale getting 2.0g rather than the recomended 1.8g. So I tried to adjust the counter weight, but I was not able to move it even though I removed the screw, the counter weight is somehow stuck into the arm. Have any of you guys experimented the same? If yes, how did you remove the counter weight?

I "believe" that the Normad's counter weight has an internal o-ring which is sticking the end stub.

First make sure the set screw grub is not engaged against the tonearm end stub. Second, try rotating the counter weight around the end tube i.e. not fore and aft. If this does not release the counter weight, use a hair dryer and gently heat the counter weight. Good luck